SpinPickHow to flip a coin online
Click the coin, the Flip coin button or press Space. The coin spins and lands on heads or tails, and the tally below counts every result so you can run "best of three" or "best of five" without keeping score in your head. Press Reset tally to start over.
When to flip a coin
- Sports: decide who kicks off, serves first or picks a side.
- Games: choose who goes first in chess, cards or video games.
- Quick decisions: pizza or pasta, stay in or go out.
- Teaching probability: flip 50 times and see how close the result gets to 50/50.
More than two options? Use the yes or no wheel with a "Maybe" slice, the spin the wheel picker, or roll a die.
The coin flip trick for hard decisions
If you are stuck between two choices, assign one to heads and one to tails and flip. Before you look at the result, notice what you are hoping for. If the coin lands on the "wrong" side and you feel let down, you have just learned what you really wanted — and you can go with that instead.
Probability facts
| Event | Chance |
|---|---|
| Heads on one flip | 1 in 2 (50%) |
| Two heads in a row | 1 in 4 (25%) |
| Five heads in a row | 1 in 32 (3.1%) |
| Ten heads in a row | 1 in 1,024 (0.1%) |
| Exactly 5 heads in 10 flips | about 24.6% |
Frequently asked questions
Is the online coin flip 50/50?
Yes. Each flip uses your browser’s cryptographically secure random number generator, so heads and tails each have exactly a 50% chance, and every flip is independent of the last.
Are real coin flips 50/50?
Very nearly, but not quite. A 2023 study of more than 350,000 real coin tosses found a coin lands on the same side it started on about 50.8% of the time. A virtual coin has no such bias.
I got heads five times in a row — is it broken?
No. Streaks are normal: five heads in a row happens about once in every 32 sets of five flips. The coin has no memory, so the next flip is still 50/50.
Can I flip with the keyboard?
Yes — press Space or F anywhere on the page.